A speed is recorded as 60 km/h with an error of 2 km/h. What is the percentage e

Practice Questions

Q1
A speed is recorded as 60 km/h with an error of 2 km/h. What is the percentage error?
  1. 3.33%
  2. 2.5%
  3. 1.67%
  4. 4%

Questions & Step-by-Step Solutions

A speed is recorded as 60 km/h with an error of 2 km/h. What is the percentage error?
  • Step 1: Identify the measured value, which is 60 km/h.
  • Step 2: Identify the absolute error, which is 2 km/h.
  • Step 3: Use the formula for percentage error: Percentage error = (Absolute error / Measured value) * 100.
  • Step 4: Substitute the values into the formula: Percentage error = (2 / 60) * 100.
  • Step 5: Calculate the division: 2 divided by 60 equals 0.0333.
  • Step 6: Multiply the result by 100 to find the percentage: 0.0333 * 100 equals 3.33.
  • Step 7: Conclude that the percentage error is 3.33%.
  • Percentage Error – Percentage error is a measure of how inaccurate a measurement is, expressed as a percentage of the true value.
  • Absolute Error – Absolute error is the difference between the measured value and the true value.
  • Measurement Units – Understanding the units of measurement (e.g., km/h) is crucial for interpreting speed and error.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely